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Gymnocalycium reductum ssp. leeanum netrelianum


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Gymnocalycium reductum ssp. leeanum netrelianum

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 441466

The average, annual, minimum temperature zone where Gymnocalycium reductum ssp. leeanum netrelianum is cold hardy
USDA Zone:9 20° to 30°F   (-6.5° to -1°C)
Type of plant - perennial
Flower or inflorescence: pale YELLOW-GREEN
Gymnocalycium reductum ssp. leeanum netrelianum sales history


Gymnocalycium reductum ssp. leeanum netrelianum is included in the following
B and T World Seeds flowering plant categories.

281:  Cactaceae


Happier and Healthier Plants, Naturally

plant-fungus communities, for improved nutrition, and disease and drought resistance.


Germination guide for Gymnocalycium reductum ssp. leeanum netrelianum

These notes are a general guide, it is recommended to check specialist literature for some of the more unusual seeds in our lists.
Seed Germination Theory and Practice by Professor Norman C. Deno
Some knowledge about growing from seed is necessary to germinate even the easiest seeds. Most seeds require humidity to germinate, even desert plants like Welwitschia mirabilis require that their growing medium remains moist until germination.

Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet, the seeds may not get the oxygen they require.
Some seeds need to be in the light (surface sown) or in the dark (sown deep enough to receive little or no light) to germinate. A rule of thumb is to cover the seeds their own width deep in the growing medium, but some seeds prefer to be sown much deeper, and some fairly large seeds like to be surface sown (or higher).
Many seeds germinate best at certain temperatures, some will germinate at a comparatively wide range of temperatures, yet others need fluctuating temperatures.
Almost all seeds are waiting in a dormant state for some outside stimulus to break their dormancy, some just need sufficiently high ambiant humidity, others need scarification, vernalization or to be passed through the intestines of an animal.

Gymnocalycium reductum ssp. leeanum netrelianum seeds will usually germinate in 5-180 days, even under good conditions germination may be erratic.
Normally will only germinate with light so surface sow. Sow Gymnocalycium reductum ssp. leeanum netrelianum seeds on the surface of a Peaty seed sowing mix at about 25°C.

Sand, and loam, with some sphagnum moss or coir (coconut fiber/dust) make a good mix for germinating Gymnocalycium reductum ssp. leeanum netrelianum and similar seeds. The mix needs to be free-draining, and to be slightly water retentive. Surface sow the seeds and just cover with sand. Start germinating the seeds in shady (dark), humid conditions. As the seeds start to germinate, increase the light and decrease the humidity.

Cacti


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